OSHA has just released 9 videos in English and in Spanish at: http://www.osha.gov/video/respiratory_protection/index.html
- Respiratory Protection in General Industry
- Respiratory Protection in Construction
- Respirator Types
- Respirator Fit Testing
- Maintenance and Care of Respirators
- Medical Evaluations for Workers Who Use Respirators
- Respiratory Protection Training Requirements
- Voluntary Use of Respirators
- Counterfeit and Altered Respirators: The Importance of NIOSH Certification
The visual quality of the videos is exceptional, though the files are large. I recommend using the fastest computer processor and internet connection that you own, but the download time is worth the investment.